2115745611 has 8 divisors (see below), whose sum is σ = 3223993344. Its totient is φ = 1208997480.

The previous prime is 2115745609. The next prime is 2115745633. The reversal of 2115745611 is 1165475112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2115745611 - 2¹ = 2115745609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2115745601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50374875 + ... + 50374916.

It is an arithmetic number, because the mean of its divisors is an integer number (402999168).

Almost surely, 2^2115745611 is an apocalyptic number.

2115745611 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2115745611 is a deficient number, since it is larger than the sum of its proper divisors (1108247733).

2115745611 is a wasteful number, since it uses less digits than its factorization.

2115745611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100749801.

The product of its digits is 8400, while the sum is 33.

The square root of 2115745611 is about 45997.2348190628. The cubic root of 2115745611 is about 1283.7717547583.

The spelling of 2115745611 in words is "two billion, one hundred fifteen million, seven hundred forty-five thousand, six hundred eleven".